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      1 /*
      2  * Copyright (C) 2007 Apple Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  *
      8  * 1.  Redistributions of source code must retain the above copyright
      9  *     notice, this list of conditions and the following disclaimer.
     10  * 2.  Redistributions in binary form must reproduce the above copyright
     11  *     notice, this list of conditions and the following disclaimer in the
     12  *     documentation and/or other materials provided with the distribution.
     13  * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
     14  *     its contributors may be used to endorse or promote products derived
     15  *     from this software without specific prior written permission.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
     18  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     20  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     22  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     23  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     24  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 #ifndef ChangeVersionWrapper_h
     29 #define ChangeVersionWrapper_h
     30 
     31 #if ENABLE(DATABASE)
     32 
     33 #include "PlatformString.h"
     34 #include "SQLTransaction.h"
     35 #include <wtf/Forward.h>
     36 
     37 namespace WebCore {
     38 
     39 class SQLError;
     40 
     41 class ChangeVersionWrapper : public SQLTransactionWrapper {
     42 public:
     43     static PassRefPtr<ChangeVersionWrapper> create(const String& oldVersion, const String& newVersion) { return adoptRef(new ChangeVersionWrapper(oldVersion, newVersion)); }
     44 
     45     virtual bool performPreflight(SQLTransaction*);
     46     virtual bool performPostflight(SQLTransaction*);
     47 
     48     virtual SQLError* sqlError() const { return m_sqlError.get(); }
     49 
     50 private:
     51     ChangeVersionWrapper(const String& oldVersion, const String& newVersion);
     52 
     53     String m_oldVersion;
     54     String m_newVersion;
     55     RefPtr<SQLError> m_sqlError;
     56 };
     57 
     58 } // namespace WebCore
     59 
     60 #endif
     61 
     62 #endif // ChangeVersionWrapper_h
     63